body{
    margin: 0;
    padding: 0;
    background-color: darkgreen;
    font-family: math, numberonly, Consolas, 'Cascadia code', Arial, simhei;
    overflow: hidden;
}
body>p{
    position: fixed;
    margin: 0;
    padding: 0;
}
#second{
    z-index: 1;
    background-color: #FFFFFF;
    opacity: 0.1;
    top: 0;
    left: 0;
    height: 100vh;
    width: calc(100vw * var(--w));
}
#timer{
    color: white;
    z-index: 2;
    top: calc(var(--top) * 1px);
    left: calc(var(--left) * 1px);
    transform: scale(var(--scale));
}